IPv4 R&E Routing Table Report 23:05 GMT Fri 09 May, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 977871 Prefixes after maximum aggregation (per Origin AS): 377639 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 479194 Number of IPv4 prefixes with a valid ROA: 541954 Number of IPv4 prefixes with an invalid ROA: 1050 Number of IPv4 prefixes with no ROA: 434867 Total ASes present in the Internet Routing Table: 76699 Prefixes per ASN: 12.75 Origin-only ASes present in the Internet Routing Table: 65781 Origin ASes announcing only one prefix: 26943 Transit ASes present in the Internet Routing Table: 10918 Transit-only ASes present in the Internet Routing Table: 541 Paths with bogon ASNs present in the IPv4 Routing Table: 24 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 979 Number of instances of unregistered ASNs: 984 Number of 32-bit ASNs allocated by the RIRs: 46373 Number of 32-bit ASNs visible in the Routing Table: 38164 Prefixes from 32-bit ASNs in the Routing Table: 201588 Number of bogon 32-bit ASNs visible in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 465 Number of addresses announced to Internet: 3109881600 Equivalent to 185 /8s, 93 /16s and 7 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 320262 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256760 Total APNIC prefixes after maximum aggregation: 76964 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 248015 Unique aggregates announced from the APNIC address blocks: 103114 APNIC Region origin ASes present in the Internet Routing Table: 14570 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4454 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10108 Number of APNIC addresses announced to Internet: 748414976 Equivalent to 44 /8s, 155 /16s and 232 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 287947 Total ARIN prefixes after maximum aggregation: 130021 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 289215 Unique aggregates announced from the ARIN address blocks: 138616 ARIN Region origin ASes present in the Internet Routing Table: 19198 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7035 ARIN Region transit ASes present in the Internet Routing Table: 1919 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5186 Number of ARIN addresses announced to Internet: 1353017344 Equivalent to 80 /8s, 165 /16s and 104 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 273255 Total RIPE prefixes after maximum aggregation: 133840 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 271113 Unique aggregates announced from the RIPE address blocks: 174291 RIPE Region origin ASes present in the Internet Routing Table: 28901 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12058 RIPE Region transit ASes present in the Internet Routing Table: 3976 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12415 Number of RIPE addresses announced to Internet: 731474176 Equivalent to 43 /8s, 153 /16s and 105 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 123432 Total LACNIC prefixes after maximum aggregation: 29429 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 119817 Unique aggregates announced from the LACNIC address blocks: 48847 LACNIC Region origin ASes present in the Internet Routing Table: 11221 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2701 LACNIC Region transit ASes present in the Internet Routing Table: 2494 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9177 Number of LACNIC addresses announced to Internet: 171733504 Equivalent to 10 /8s, 60 /16s and 114 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 35498 Total AfriNIC prefixes after maximum aggregation: 6771 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 49246 Unique aggregates announced from the AfriNIC address blocks: 13940 AfriNIC Region origin ASes present in the Internet Routing Table: 1910 AfriNIC Prefixes per ASN: 25.78 AfriNIC Region origin ASes announcing only one prefix: 695 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1278 Number of AfriNIC addresses announced to Internet: 105018368 Equivalent to 6 /8s, 66 /16s and 116 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10795 8756 96 CHINAMOBILE-CN China Mobile Communication 7545 6162 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4368 534 301 BBIL-AP BHARTI Airtel Ltd., IN 18403 4339 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3907 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3688 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3265 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2867 852 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2208 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2188 11523 648 KIXS-AS-KR Korea Telecom, KR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13319 40823 4741 AMAZON-02, US 11492 4726 313 592 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3472 8749 893 COGENT-174, US 22773 3348 3034 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3253 54861 2504 DNIC-AS-00749, US 396982 3164 3852 416 GOOGLE-CLOUD-PLATFORM, US 16625 3024 1265 2222 AKAMAI-AS, US 36352 2777 228 852 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7693 1714 148 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3951 3395 123 AKAMAI-ASN1, NL 9009 3798 327 1992 M247, RO 12389 3069 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2362 360 584 TELLCOM-AS, TR 212238 2137 151 1578 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1602 1852 14 TE-AS TE-AS, EG 8551 1428 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12072 3247 582 UNINET, MX 10620 3505 481 1018 Telmex Colombia S.A., CO 13999 2513 540 362 Mega Cable, S.A. de C.V., MX 11830 1995 369 64 Instituto Costarricense de Electricidad y 28573 1358 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1205 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1191 371 22 Telefonica del Peru S.A.A., PE 22884 1054 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 374 163 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1744 631 30 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1596 103 34 ORANGE-COTE-IVOIRE, CI 36992 1431 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1036 523 45 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 549 82 3 KENET-AS, KE 15399 531 56 53 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13319 40823 4741 AMAZON-02, US 8151 12072 3247 582 UNINET, MX 9808 10795 8756 96 CHINAMOBILE-CN China Mobile Communication 12479 7693 1714 148 UNI2-AS, ES 7545 6162 842 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4726 313 592 CABLEONE, US 9498 4368 534 301 BBIL-AP BHARTI Airtel Ltd., IN 18403 4339 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3951 3395 123 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12072 11490 UNINET, MX 9808 10795 10699 CHINAMOBILE-CN China Mobile Communications Grou 12479 7693 7545 UNI2-AS, ES 7545 6162 5508 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4339 4314 FPT-AS-AP FPT Telecom Company, VN 11492 4726 4134 CABLEONE, US 9498 4368 4067 BBIL-AP BHARTI Airtel Ltd., IN 7552 3907 3881 VIETEL-AS-AP Viettel Group, VN 20940 3951 3828 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:16 /10:41 /11:93 /12:300 /13:580 /14:1213 /15:2143 /16:13945 /17:8211 /18:13625 /19:24471 /20:43566 /21:51445 /22:111534 /23:101233 /24:605439 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6614 7693 UNI2-AS, ES 8151 6268 12072 UNINET, MX 11492 3533 4726 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2496 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2314 13319 AMAZON-02, US 30036 2219 2559 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2191 3505 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2340 2:1503 3:701 4:10 5:4675 6:162 7:6 8:1586 9:1 11:172 12:1366 13:381 14:2500 15:353 16:283 17:372 18:921 20:518 21:4 22:188 23:7484 24:2748 25:2 27:2744 29:19 31:3242 32:37 33:1 34:83 35:205 36:2757 37:4635 38:9130 39:909 40:171 41:4227 42:1962 43:2566 44:376 45:18549 46:5033 47:292 49:1933 50:1890 51:591 52:1558 54:308 55:1094 56:11 57:255 58:2208 59:1302 60:1164 61:2814 62:2916 63:1805 64:5456 65:2160 66:4629 67:3056 68:1122 69:3826 70:1085 71:631 72:2847 74:2766 75:1607 76:615 77:2733 78:1868 79:1757 80:2198 81:2046 82:3151 83:1429 84:1846 85:3436 86:1051 87:2148 88:1282 89:4360 90:773 91:8337 92:2714 93:2887 94:4029 95:4323 96:1418 97:312 98:980 99:675 100:72 101:1407 102:3924 103:32196 104:4820 105:769 106:1033 107:2622 108:1211 109:4083 110:2231 111:3358 112:2056 113:1791 114:1972 115:2165 116:2045 117:2614 118:2882 119:1947 120:1890 121:1367 122:2750 123:2164 124:1612 125:2849 126:91 128:1562 129:950 130:1283 131:1942 132:772 133:451 134:1529 135:331 136:1305 137:1117 138:2875 139:1635 140:1574 141:1502 142:1900 143:1713 144:1106 145:503 146:2154 147:2096 148:2630 149:2864 150:1249 151:1849 152:2079 153:497 154:8128 155:1686 156:3351 157:1899 158:1305 159:2441 160:3571 161:1880 162:3723 163:2122 164:1692 165:2197 166:1472 167:1903 168:4031 169:786 170:5061 171:1007 172:4404 173:3260 174:908 175:1295 176:3670 177:4649 178:3621 179:2274 180:2612 181:4067 182:3421 183:2087 184:2053 185:21545 186:5098 187:4449 188:4222 189:4246 190:9614 191:1472 192:11202 193:9468 194:7760 195:5509 196:3288 197:3707 198:6073 199:8493 200:8053 201:6300 202:10229 203:10528 204:4513 205:3590 206:4460 207:3444 208:4244 209:5165 210:4567 211:2538 212:4522 213:3693 214:1030 215:48 216:6704 217:3121 218:1341 219:378 220:2086 221:1078 222:717 223:2363 End of report